Bindings/i2c/i2c-owl.yaml

   1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/i2c/i2c-owl.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: Actions Semi Owl I2C Controller
   8
   9 maintainers:
  10   - Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
  11
  12 description: |
  13   This I2C controller is found in the Actions Semi Owl SoCs:
  14   S500, S700 and S900.
  15
  16 allOf:
  17   - $ref: /schemas/i2c/i2c-controller.yaml#
  18
  19 properties:
  20   compatible:
  21     enum:
  22       - actions,s500-i2c # Actions Semi S500 compatible SoCs
  23       - actions,s700-i2c # Actions Semi S700 compatible SoCs
  24       - actions,s900-i2c # Actions Semi S900 compatible SoCs
  25
  26   reg:
  27     maxItems: 1
  28
  29   interrupts:
  30     maxItems: 1
  31
  32   clocks:
  33     description: Phandle of the clock feeding the I2C controller.
  34     minItems: 1
  35
  36   clock-frequency:
  37     description: |
  38       Desired I2C bus clock frequency in Hz. As only Standard and Fast
  39       modes are supported, possible values are 100000 and 400000.
  40     enum: [100000, 400000]
  41
  42 required:
  43   - compatible
  44   - reg
  45   - interrupts
  46   - clocks
  47
  48 unevaluatedProperties: false
  49
  50 examples:
  51   - |
  52     #include <dt-bindings/clock/actions,s900-cmu.h>
  53     #include <dt-bindings/interrupt-controller/arm-gic.h>
  54     i2c@e0170000 {
  55         compatible = "actions,s900-i2c";
  56         reg = <0xe0170000 0x1000>;
  57         interrupts = <GIC_SPI 25 IRQ_TYPE_LEVEL_HIGH>;
  58         clocks = <&cmu CLK_I2C0>;
  59         clock-frequency = <100000>;
  60     };
  61
  62 ...